Résultats de la recherche
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Calibration of an acoustic echo-integration system in a deep tank, with system gain comparisons over standard sphere material, water temperature and time
acoustic system with a standard sphere. It presents the results of an extensive calibration of a Simrad ... follows concerning the ramifications of calibration errors and variability on the accuracy of acoustic ... biomass estimation. Author(s): D.A. Demer and R.P. Hewitt (USA) Title: Calibration of an acoustic echo ... Abstract: This paper outlines the theory and procedures for calibrating an echo integration ...
Meeting Document : WG-KRILL-92/17 : Auteur(s): D.A. Demer and R.P. Hewitt (USA)
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Krill: the power lunch of Antarctica
Abstract: For several years, ASOC has been calling for improved management of Antarctic krill ... coverage on board krill vessels, identifying priority objectives for research and development in support of ... the management of the krill fishery, conducting a new krill synoptic survey, keeping the trigger level ... procedures with the aim of reducing speculative notifications, and requiring mandatory ice-strengthening for ...
Meeting Document : CCAMLR-XXXIII/BG/25 : Auteur(s): Submitted by ASOC
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CEMP 2018/19 data and updated spatial analysis of Area 48
patterns of inter-annual variability of the response by krill-dependent predators to changes in the ... ecosystem. The CSI analysis continues to show evidence of concordance of response to changes in the ... Secretariat Title: CEMP 2018/19 data and updated spatial analysis of Area 48 Microsoft Word File: emm-2019 ... Abstract: This paper reports on the CCAMLR Ecosystem Monitoring Program (CEMP) data submissions ...
Meeting Document : WG-EMM-2019/04 : Auteur(s): CCAMLR Secretariat
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Supervised and unsupervised (RapidKrill) estimates of krill density from DY098
, using python, processing of acoustic data collected during the UK cruise DY098. The same ... up with a similar estimate of krill NASC and krill density as the supervised method. An ... estimate of krill density is supplied for the WCB survey using three methods. The multifrequency method ... produces a krill density of 8.60 gm-2, compared with 21.76 gm-2 (supervised) or 20.41 gm-2 (unsupervised ...
Meeting Document : SG-ASAM-2019/09 : Auteur(s): A. Ariza, S. Fielding and R. Blackwell
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Support to CCAMLR to identify and deter illegal, unreported and unregulated (IUU) fishing activities that undermine the objective of the CAMLR Convention – Interim Report 2019
activities of the Global Fisheries Enforcement Project are supported. This paper presents the report ... Abstract: In 2018 EU provided a further grant of €50 000 to support to CCAMLR to identify and ... deter illegal, unreported and unregulated (IUU) fishing activities that undermine the objective of the ... CAMLR Convention. In order to meet the objectives of the grant, INTERPOL was contracted, and the 2019 ...
Meeting Document : CCAMLR-38/BG/05 : Auteur(s): INTERPOL and CCAMLR Secretariat
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Assessment of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.4
Abstract: This paper describes an updated CASAL based assessment of Patagonian toothfish (D ... fits. Stock projections indicate that the stock was at 67% of B 0 in 2018/19 and that a yield of 27 ... tonnes in 2019/20 and 2020/21 is consistent with the application of the CCAMLR harvest control rule ... . Author(s): T. Earl and E. MacLeod Title: Assessment of Patagonian toothfish (Dissostichus eleginoides ...
Meeting Document : WG-FSA-2019/29 : Auteur(s): T. Earl and E. MacLeod
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Trophic study of Ross Sea Antarctic toothfish (Dissostichus mawsoni) using carbon and nitrogen stable isotopes
Abstract: This report amalgamates stable isotope analyses of fish (n=476), squid (n=50) and ... variables in explaining the variation of δ15N and δ13C. Positive relationships between length and δ15N ... indicate that, very generally, larger fish consume prey of a higher trophic level than smaller fish. There ... range of 7 ‰ (9–16 ‰) in δ15N, which is equivalent to two trophic steps. All fish, except Antimora ...
Meeting Document : WG-EMM-08/27 : Auteur(s): S.J. Bury, M.H. Pinkerton, D.R. Thompson, S. Hanchet, J. Brown and I. Vorster (New Zealand)
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Patterns of change in Antarctica
Abstract: Hard copies of the infographic will be circulated at CCAMLR-XXXIV. Author(s ... ): Delegation of the United Kingdom (Hard copies of the infographic will be circulated at CCAMLR-XXXIV) Title ... : Patterns of change in Antarctica Microsoft Word File: cc-xxxiv-bg-01.docx Approval: Approved Secretariat ...
Meeting Document : CCAMLR-XXXIV/BG/01 : Auteur(s): Delegation of the United Kingdom (Hard copies of the infographic will be circulated at CCAMLR-XXXIV)
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Revised research program of Ukraine in Subarea 48.1 in 2018
Abstract: Ukraine proposes to carry out a scientific survey of Dissostichus spp. by bottom ... longline in the eastern part of Subarea 48.1. Author(s): Delegation of Ukraine Title: Revised research ... program of Ukraine in Subarea 48.1 in 2018 Approval: Approved Secretariat Workflow Status: Content ...
Meeting Document : WG-FSA-17/32 : Auteur(s): Delegation of Ukraine
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Preliminary results from a study examining spatial structure and connectivity in Patagonian toothfish (Dissostichus eleginoides) in the South Atlantic section of the Southern Ocean
of otoliths from Patagonian toothfish (Dissostichus eleginoides), and examined whether the elemental ... American continental shelf near the Falkland Islands. Furthermore, we examined the elemental signatures of ... been taken from different locations. We found signatures on the otolith edge of fish from South Georgia ... and Shag Rocks showed distributions characterized by lower levels of Mn/Ca than samples from the FOCZ ...
Meeting Document : WG-FSA-03/86 Rev. 1 : Auteur(s): J.R. Ashford (USA), A. Arkhipkin (United Kingdom) and C.M. Jones (USA)